Roller-bearing.



K. WOLF.' ROLLER BEARING. APPLICATION FILED DEC. 19.19l3- Patented Nov. 2, 1915.

UNITED STATES PATENT OFFICE.

KARL WOLF, OF BROOKLYN, NEW YORK, ASSIGNOR T GLOBE ANTI-FRICTION ROLLER BEARING COMPANY, OF BROOKLYN, NEW YORK.

ROLLER-BEARING.

Specification of Letters Patent.

Patented Nov. 2, 1915.

Application filed December 19, 1913. Serial No. 807,606.

' zen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Roller-Bearings, of which the following is a specification.

This invention relates to roller bearings, particularly of the character disclosed in the patent application of John Newmann, #688,333, filed December 28, 1911, and has for its object to improve the constructionof the beanng'by providing a novel form of spacing device which is both lighter and stronger than that disclosed in the pending application, which is of much simpler and cheaper construction and which permits of a greater number of bearing rollers being employed in a bearino of the same 'size and otherwise improves the construction of the device as will be hereinafter described.

In the accompanyin drawings forming a part of this application, I have disclosed a preferred form of my invention applied both as a cylindrical bearing and as a tapered bearing. It is to be understood how-- ever that the improved spacer may be emloyed in various other types of bearings, for instance the split bearing disclosed in the patent to John Newmann, No. 1,037,510

I dated September 3, 1912.

In the said drawings Figure 1 is a cross section through the outer member of a cyl1ndrical bearing constructed in accordance with .my invent1on;'F1g. 2 1s an end View or the part shown in Fig. 1; Fig; 3 is a sectional view of a tapered bearing constructed in accordance with In invention; and Figs. 4, 5, 6 and 7 are detailed views showing the construction of my improved spacer.

Referring now to the drawings, and particularly Figs. 1 and 2, 1 indicates the outer member of the bearing, here shown as a cylindrical sleeve having in its inner surface a central annular depression 2, extending through, about two-thirds the length of the sleeve. It is understood that the surface of this depression is ground to form the bearing surface for the rollers 3 which are arranged in the shell in the usual manner,

a between the shell and'thednner member 5 of the bearing and with their axes parallel with theaxisof rotation 6. As shown, the rollers are enlarged throughout. the middle portion of their length equal to thelength bearing ball 7. The diameter of the ball 7 is such with regard to the thickness of the spacer that the reduced ends of the roller come in contact with the ball before the central enlarged portion of the roller engages the spacer. Or as may be otherwise expressed, there is a slight clearance between the surface of the roller and the face of the spacer.

In order that the rollers and spacers may properly maintain themselves in operative position, the edges of the spacer are cut inthe patterns shown in Fig. 4 with a pair of notches at each end and on each edge of the spacer adjacent the balls whereby two narrow tongues 8, S-9, 9 are provided at each end of the spacer respectively. The tongues are all bent or curved to correspond to the curvatureof the rollers while the portions 10 of the edges of the spacers between the tongues are curved in the same manner but in the opposite direction to'embrace the adjacent roller as clearlv shown in Fig. 2. To hold the balls 7 in place during the assembling of the bearing, the edge of the hole in which the ball is inserted is punched over at three or four points around the ball with a light punch or other suitable instrument,

dotted line in Fig. 2, until the roller can be inserted between them, and then the roller is forced into engagement with the face of the sleeve. The parts will then remain in their proper position by reason of the fact that it is possible for one roller to move inwardly only when all the other parts of the hearing are in their extreme outer position.

As the annular flanges at the end of the central depression hold the rollers against axial movement, and the balls hold the spacers against axial movement relative to the rollers, the entire device will retain itself in assembled position without exterior support rower at the end intended for engagement with the small end ofthe roller, and the ball'at the smaller end of the spacer is necessarily of smaller diameter to accommodate the shorter distance between the reduced ends of the roller. The inner surface of the outer'member of the bearing is of course tapered to correspond with the taper of the rollers and is provided witha central annular depression embracing the enlarged por-v tions of the rollers.-

It will be observed that my improved spacer may be very cheaply made by a single operation of an ordinarydie press which simultaneously cuts out the blank spacer from the sheet of metal stock, and bends the tongues and edgesin the opposite direction. As there is no strain or wear on the spacer it may be made of light, soft material such as I is easily cut and shaped and which adds i i v a I i In a rolle'r b anngt innert router members, a series of rollers little weight to the bearing and occupies but a very little of the space between the rollers. The balls of course are ordinary bearing balls and are-easily and readily mounted in the-spacer against displacement.

.It will-be understood that my invention is of. course .not limited tothe exact design dis closed; as any 1 suitable design 'providing a plurality. of separate: tongues-along the op-' posite-edge'sgi for bending in the opposite directionsim'ay :beiemployed instead; 5 Having thusrdescribe'd my invention", wh'at' Lclailnandi'ds' e-to secure by Letters Pat- GHfiiiSLimr' 1.42. :1

1. In a roller beariifgg tlie combination'of' at; supporting and a supported member; a senies :of rollerswinterpose'd between said mem-l hers and spacers 'alternating withisaid 1-011: er's,.=said. spacers comp'risihg separate l "ieces n extending: parallel with said rollers an hav -z ing different 'longi'tudinal portions of Etheir" edges lcurved". in: opposite :-directions {to emf" opposite *sides" brace: th y"; rollers. on; th thereofima Copies of; t

combination off "different longitudinal portions of their opposite edges curved in opposite directions to embrace the rollers on opposite sides thereof and having balls mounted in said spacers and engaging said rollers. a 3. Ina roller bearing, the combination of inner and outer members, a series of rollers having portions of reduced diameter interposed between said members, spacers alternating with'said rollers, said spacers comprising separate sheet metal pieces extending parallel with said rollers and having dilferent longitudinal portions of thei r edges curved in opposite directions to embrace'the enlarged portions of the adjacent rollers, and balls mounted insaidspacers and' engaging the reduced portions of said rollers. 4. Ina roller bearing, the combination of inner and outer members, a series of roll ers having portions of reduced diameter interposed between said members, spacers alternating with saidfrollers, "said spacers comprising separate sheet metal pieces'having their main faces substantially radial tothe center of rotation and provided with notches in" their {edges formin'gf a plurality of tongues, certain of said tongues being curved in opposite directions to embrace the enlarged portionsof the adjacent rollers, and balls mountedin said spacers and engaging the reduced portions of said rollers.

5:Asp'acerfor'roller'b'earings comprising I a sheet metal bar having notches in'its edges formin'g laplurality of tongues, certain of which tongues are curved in'opposite direc-' tions,'said tongues being disposed to provide the bar and: an intermediate"tongue-or ex p ei fiioh b i the e e tension, s'aid interme'diatej tongue fbji-jjeir'ten SIOII and? said *end 5 tongues being curved in opposite directions, and "anti-friction Ball carried bythe ends of said tongues.

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